Pressure Roller Bearings are coated with urethane rubber and fixed by special processing on its outer ring to keep its rotation accuracy. Under the proper radial loading, the coefficient of friction and hardness of rubber are useful for handling paper or for carrying mechanisms, guide bearings and idle bearings. Pressure Roller Bearings are commonly used in desktop and industrial printers, ATMs, robotics and more. Urethane has a durometer of HS90+5.